Mug



FIG. 1 is a top, front and right side perspective view of a mug showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof, the rear view not shown is plain; and

FIG. 4 is a right side elevational view thereof, the side opposite is plain.

The bottom of the mug is flat and unornamented. 

The ornamental design for a mug, as shown and described. 